1. A small rounded projecting part or outgrowth, such as a wartlike excrescence on the roots of some leguminous plants or a knoblike process in the skin or on a bone.
2. pathology A nodule or swelling, especially a mass of lymphocytes and epithelioid cells forming the characteristic lesion of tuberculosis.

1. A round nodule, small eminence, or warty outgrowth, especially those found on bones for the attachment of a muscle or ligament or small elevations on the surface of a tooth.
2. A small rounded wartlike protuberance of the roots of some leguminous plants; the lip of certain orchids, cacti.
3. A small rounded nodule forming the characteristic lesion of tuberculosis.

1. A small knoblike prominence or excrescence, whether natural or morbid
2. A small mass or aggregation of morbid matter; especially, the deposit which accompanies scrofula or phthisis. this is composed of a hard, grayish, or yellowish, translucent or opaque matter, which gradually softens, and excites suppuration in its vicinity. it is most frequently found in the lungs, causing consumption.

1. A little tuber, or tubercule; a small tuberosity; especially, a small projection of a bone, for the attachment of a ligament or tendon, as of the femur, hyoid, scaphoid, ulna, tibia, zygoma, etc. see tuberculum and tuberosity.
2. A roughness on the humerus for the insertion of the deltoid muscle: usually called deltoid ridge.

1. a protuberance on a bone especially for attachment of a muscle or ligament
2. a swelling that is the characteristic lesion of tuberculosis
3. small rounded wartlike protuberance on a plant